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🐛 Fix, improve PWM on AVR (#23463)

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Mike La Spina
2022-01-12 17:28:53 -06:00
committed by GitHub
parent 3e2a38b653
commit 2cfde39eca
7 changed files with 131 additions and 189 deletions
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Marlin/src/HAL/AVR/fastio.cpp
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@@ -257,7 +257,7 @@ uint16_t set_pwm_frequency_hz(const_float_t hz, const float dca, const float dcb
const float pwm_top = round(count); // Get the rounded count
ICR5 = (uint16_t)pwm_top - 1; // Subtract 1 for TOP
OCR5A = pwm_top * ABS(dca); // Update and scale DCs
OCR5A = pwm_top * ABS(dca); // Update and scale DCs
OCR5B = pwm_top * ABS(dcb);
OCR5C = pwm_top * ABS(dcc);
_SET_COM(5, A, dca ? (dca < 0 ? COM_SET_CLEAR : COM_CLEAR_SET) : COM_NORMAL); // Set compare modes